private void AddClient()
{
var id = _dbContext.GetClients().Any() ? _dbContext.GetClients().Max(i => i.Index) : 0; //If there is none, return 0
_dbContext.Add(new Client()
{
Name = Name, Age = Age.Value, Index = id + 1, LastName = LastName, Phone = Phone
});
Confirm = true;
Task.Delay(3000);
Confirm = false;
}
